MEDICAL PHYSIOLOGY

PHYSIOLOGY

SYNAPTIC PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An enzyme that converts ATP to cyclin AMP in response to an extracellular signal
A
adenylyl cyclase
B
signal amplification
C
transcription
D
phosphorilation
Explanation: 

Detailed explanation-1: -Adenylyl cyclase is the enzyme that synthesizes cyclic adenosine monophosphate or cyclic AMP from adenosine triphosphate (ATP). Cyclic AMP functions as a second messenger to relay extracellular signals to intracellular effectors, particularly protein kinase A .

Detailed explanation-2: -Adenylate cyclase converts adenosine triphosphate (ATP) into cyclic adenosine monophosphate (cAMP), a ubiquitous second messenger that regulates many functions.

Detailed explanation-3: -Adenylate cyclase (AC) converts adenosine triphosphate (ATP) into cAMP, which stimulates cAMP-dependent protein kinase A (PKA).

Detailed explanation-4: -All classes of adenylyl cyclase catalyse the conversion of adenosine triphosphate (ATP) to 3’, 5’-cyclic AMP (cAMP) and pyrophosphate.

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